Doepfer A-135-2
Professional music gear - detailed information and where to buy
Doepfer
A-135-2
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The A-135-2 is a workhorse VCA module – simple, reliable, and compact. It's a fantastic starting point for modular newbies needing clean gain and mixing, or a valuable addition for experienced users wanting a no-frills, efficient routing solution. The build quality is excellent, as you'd expect from Doepfer.
Product Description
- Doepfer A-135-2
- Eurorack Module
- Quad VCA / Voltage Controller Mixer
- Compact version of the A-135-1
- 4 Separate linear VCAs
- each with CV input
- signal input and signal output
- Sum signal of all VCAs additionally available
- Per channel level and CV control
- Stereo and quadrature operation selectable by jumper
- Width: 8 HP
- Depth: 40 mm
PROS
- • Solid Doepfer build quality; feels robust and reliable
- • Compact 8HP footprint maximizes precious rack space
- • Flexible stereo/quadrature operation expands creative possibilities
- • Sum output provides convenient signal aggregation and routing
CONS
- • Linear VCAs can feel a bit clinical for some sound design
- • Limited modulation destinations compared to more complex VCAs
- • No attenuators on CV inputs; requires external attenuation
Product Video
Key Features
Channels
4
Response
Linear
HP Width
8
Depth
40 mm
Power Draw
+/-14mA
CV Inputs
4
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Frequently Asked Questions
Stereo mode simply sums the outputs, while quadrature introduces a 90-degree phase shift, useful for creating stereo movement or phasing effects.
Yes, the sum output reflects the combined levels of all four VCAs, adjustable via their individual level controls.
The A-135-2 offers a very clean, neutral sound characteristic – it's not colored or 'warm' like some vintage VCAs, prioritizing accuracy and transparency.
